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Elite Fire Tube Ultra Efficient Condensing Boiler & Combi

Dependable Condensing Boiler & Combi Models

The Elite Fire Tube Ultra Boiler and Combi models were thoughtfully designed by our Italian Engineers to combine efficiency, dependability, and quality in one product. Packed with state-of-the-art technologies, smart connectivity, an easy to use interface, and whisper quiet operation, the Elite Fire Tube Ultra is made to perform and last.

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Excellence in Every BTU

Available in 7 different model types. All models ship ready to operate on natural gas and come standard with liquid propane conversion kits.

Model Number   Minimum /Maximum Btu/Hour Central Heating (CH) Minimum /Maximum Btu/Hour Domestic Hot Water (DHW)
EFTU-85WBN Heating Only 8,500/85,000 N/A
EFTU-110WBN Heating Only 11,000/110,000 N/A
EFTU-110WCN Combi 11,000/110,000 11,000/110,000
EFTU-150WBN Heating Only 15,000/150,000 N/A
EFTU-150WCN Combi 15,000/150,000 15,000/150,000
EFTU-199WBN Heating Only 19,900/199,000 N/A
EFTU-199WCN Combi 19,900/199,000 19,900/199,000


Vertical Fire Tube Heat Exchanger



What makes the vertical Fire Tube heat exchanger so unique? Constructed of robust chromium stainless steel with a down-fired design, this heat exchanger resists combustion chamber damage, scale build-up, and magnetite formation better than other heat exchanger types on the market - prolonging its lifetime and reducing maintenance. The dimpled fire tubes extract more heat while remaining compact, without the need for inserts that degrade over time.

Absolute Efficiency


The stainless steel Elite Fire Tube Ultra offers high efficiency, low pressure drop, and performance you can depend on. These models include an outdoor sensor that when used provides an AFUE rating of up to 96%, ensuring savings on your monthly energy bills. The 10:1 turndown ratio limits short cycling for more efficient energy consumption. The Elite Fire Tube Ultra also comes equipped with a built-in highly efficient ECM Pump.

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Get Connected, Stay Connected

HTP Link


The Highly Efficient Elite Fire Tube Ultra comes equipped with HTP Link Technology, a WiFi solution that enables remote monitoring of the appliance and system. Monitor your boiler on the go or allow qualified personnel to be notified when faults or other key activities occur in the boiler, giving you peace of mind wherever you are.

When you are on location, the simple to use, high resolution touchscreen provides a clear visual of system operation, allowing easy monitoring and troubleshooting if necessary.


Advanced Assurance

The Elite Fire Tube Ultra is backed by a 15 year limited warranty when registered online.

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Fast Connection, Anywhere



Download HTP’s FREE Mobile App. Perfect for when you need guidance on the job. You’ll be able to access installation manuals, parts and installation drawings, brochures, troubleshooting videos and more.

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